66.90.18 is a class C of IPs

Sample IPs from the class C 66.90.18

66.90.18.128	View precise location of 66.90.18.128 on the map!
66.90.18.167	View precise location of 66.90.18.167 on the map!
66.90.18.158	View precise location of 66.90.18.158 on the map!
66.90.18.40	View precise location of 66.90.18.40 on the map!
66.90.18.118	View precise location of 66.90.18.118 on the map!
66.90.18.207	View precise location of 66.90.18.207 on the map!
66.90.18.91	View precise location of 66.90.18.91 on the map!
66.90.18.195	View precise location of 66.90.18.195 on the map!
66.90.18.171	View precise location of 66.90.18.171 on the map!
66.90.18.212	View precise location of 66.90.18.212 on the map!
66.90.18.220	View precise location of 66.90.18.220 on the map!

10 Random IPs

36.83.168.118	Find precise map location of 36.83.168.118
95.76.117.57	Find precise map location of 95.76.117.57
139.228.237.63	Find precise map location of 139.228.237.63
163.42.16.111	Find precise map location of 163.42.16.111
23.83.241.203	Find precise map location of 23.83.241.203
129.201.179.33	Find precise map location of 129.201.179.33
178.86.239.127	Find precise map location of 178.86.239.127
232.183.255.111	Find precise map location of 232.183.255.111
205.16.191.31	Find precise map location of 205.16.191.31
99.236.99.209	Find precise map location of 99.236.99.209
8.214.100.189	Find precise map location of 8.214.100.189

TestURI.org is a free web-sniffer.net alternative. It alows you to send custom HTTP request and check the HTTP response.